Costa Cortez Sunglasses give you the vision you need to reel in the big one, whether it's hiding in saltwater or freshwaterCosta sunglasses are designed to reduce the glare coming off water, giving fishermen an extra advantageCrafted from TR-90 Nylon, these shades are temperature-resistant, light weight and comfortableAvailable with mirror coating or polarization; the choice is up to youPick from a diverse array of lens tints and frame colorsThese sunglasses are available with a mirror coating option on certain colors. Mirror coatings are suitable for protection from intense light. A mirror coating reflects back light and reduces the amount of light passing through the lens. This makes it more comfortable for eyes in very sunny conditions.These sunglasses are available with polarized lenses on certain colors. Polarized lenses have a filter within the lens that blocks the wavelengths of light that cause glare. They can greatly enhance contrast and allow for greater depth of vision, especially in water. They are ideal for any situation where glare reduction is necessary, like driving or playing sports.